. >> he's going to be remembered as one great day in american politics when barack obama, an american mother and kenyan father, a graduate of harvard law school, the president of harvard law review, a senator in just his second year of office runs for president of the united states and is already the number two candidate. [ applause ] >> we're back to the "hardball college tour" at american university. mr. president, your remarks on economic justice to me as a roman catholic was so the further muslim background to the belief that we have, a social responsibility, a moral responsibility to look at how people have made it in this country. >> yeah. there's no great religion that doesn't speak to this. at root, every great religion has some equivalent of the golden rule, some equivalent of the idea that i am my brother's keeper and my sister's keeper, some notion that even as we each take individual responsibility for acting in a responsible and righteous way, part of our obligation is to the larger world and to future generations. and i think pope francis is showing himself to be just an